Silicon powder
Silicon powder, also known as condensed silica fume, the main component is SiO2, the content of up to 85 ~ 95%. Fineness: The particles of silica powder are extremely fine, with an average particle size of 0.1~0.15. Refractoriness of SiO2, the content of up to 85 ~ 95%.
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Product Description
Silicon powder, also known as condensed silica fume, the main component is SiO2, the content of up to 85 ~ 95%.
performance]
1. fineness: silica powder particles are extremely fine, the average particle size of 0.1~0.15
2 refractoriness SiO2, the content of up to 85 ~ 95%.
3. particle shape: silicon powder is spherical in different sizes, and the surface is hinged to smooth, can play a lubricating role, reduce the friction between the particles.
4. Mineral structure: The condensation process of silica powder is extremely rapid, and it is a high-quality cement, concrete admixture and low-cement pouring additive.
[use]]
comprehensive utilization of silicon powder:
1. In the construction industry, silicon powder is used as cement ingredients to improve the coagulation speed, corrosion resistance, insulation and wear resistance of the mixture;
2. Used for mortar and concrete, filling the gaps between particles, and reducing the content of Ca(OH)2, making mortar and concrete dense and uniform;
3. Used in the chemical industry, silicon powder is used in precision ceramics and high-performance powder metallurgy. It is the basic raw material for silicate synthesis and an important filling material in organic compounds;
4. Used for pesticides and improved soil varieties.
technical indicators]
chemical composition |
Project |
Indicators |
|||
SiO2 |
Not less |
93.0 |
90.0 |
88.0 |
|
Al2O3 |
not greater |
1.0 |
1.5 |
- |
|
Fe2O3 |
not greater |
5.0 |
5.0 |
8.0 |
|
Physical indicators |
4.5 sieve residue ≥ 4.5pm% |
not greater |
20.0 |
18.0 |
15.0 |
Specific surface area (㎡/g) |
not greater |
20.0 |
18.0 |
15.0 |
|
PH |
not greater |
7.0 |
7.0 |
7.0 |
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